Spectraseis Strengthens Board with Jean Chevallier Appointment

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Zurich, Switzerland, April 1, 2009. Spectraseis, the leading provider
of low frequency passive seismic geophysical solutions to the
upstream oil & gas industry, today announced that Jean Chevallier has
joined its board as a non-executive director.

Mr. Chevallier recently retired as Vice President Industry Affairs of
Schlumberger Ltd, where he held a variety of senior management
positions during a 36-year career.

Spectraseis CEO, Ross Newman, said:

"We are delighted that Jean Chevallier has joined our board. Jean
brings deep knowledge of the worldwide oilfield services business and
direct experience of managing a fast-growing technology organization.
His expertise, gained at the highest levels of the industry, will be
invaluable in ensuring that Spectraseis is recognized as a highly
reliable, top-tier technology partner to national and international
oil & gas companies."

Jean Chevallier spent his entire career with Schlumberger, the
world's leading oilfield services firm. During this time he held a
variety of senior management positions around the world in the
oilfield services and as Schlumberger CIO and President of Omnes. Mr.
Chevallier graduated MSc in physics from the University of
Montpellier in France and holds an engineering degree in naval
architecture and mechanical engineering from the Ecole Nationale
Superieure du Genie Maritime (ENSTA) in Paris.

The appointment follows two recent additions to the Spectraseis board
last year - Ian Vann, former Group Vice President for Exploration &
Business Renewal at BP, and Bjarte Fagerås, Chairman of Octio
Geophysical AS.

Note to editors

About Spectraseis

Spectraseis is the principal technology and service provider in the
fast-emerging field of low frequency passive seismic geophysical
surveys to help oil and gas companies more efficiently find and
produce hydrocarbon reserves.

Zurich, Switzerland-based Spectraseis researches and applies
proprietary technologies to acquire and analyze low frequency (<10
Hz) seismic background waves continuously present in the Earth's
subsurface in order to identify spectral attributes indicating the
likely presence or absence of hydrocarbons and other characteristics
of subsurface reservoirs within a survey area. The resulting
information can greatly reduce the risk and improve the success rate
of costly oil exploration and drilling activities and improve
decision-making throughout the life of a field. Broad adoption of the
company's technology by the global oil and gas exploration and
production industry can be expected to save billions of dollars each
year which is currently expended on non-productive exploration
surveys and dry wells, as well as significantly improve the
industry's environmental performance.

For more information, please visit www.spectraseis.com

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All product and company names herein may be trademarks of their
respective owners.

For further information, contact:

Ross Newman, Chief Executive, Spectraseis AG
Tel. +41 43 500 5828 or +41 78 697 5888
ross.newman@spectraseis.com

Brice Bouffard, VP Sales & Marketing, Spectraseis AG
Tel. +41 43 500 5849
Brice.Bouffard@spectraseis.com

Paul Fisher, Axiom Communications Management
Tel: +44 (0) 1285 713 776
pfisher@axiomcomms.com

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Spectraseis AG
Giessereistrasse 5 Zurich Switzerland

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Market in SIX Swiss Exchange;
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